the act of putting something into use after it has not been used for some time; the act of putting something in a place where it has not been for some time

They are opposed to the re-introduction of the unpopular tax.

Wildlife experts supervised the reintroduction of wolves to the national park.

He did not hide his view that wolf reintroductions threaten basic human freedoms. 他并没有隐瞒自己的观点，即狼的放归会威胁到人类的基本自由。

the act of experiencing something again after you have not experienced it for some time

The conference was supposed to be my reintroduction to the world of politics.

He looked nervous on his reintroduction to high-level competition. 他对重新参加高水平比赛感到紧张。